checksum(redirected from Check sum)
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A numerical value calculated from a series of bits of digital data, often by summing their values, used to test whether the data has changed during storage or transmission.
a digit representing the number of bits of information transmitted, attached to the end of a message in order to verify the integrity of data
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|Noun||1.||checksum - a digit representing the sum of the digits in an instance of digital data; used to check whether errors have occurred in transmission or storage|